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  1. sworddark90

    Excavation and Installation of pipe using micro tunneling procedure near existing MSE wall.

    Hello, I have been given a task to conduct a review on impact assessment of irrigation pipeline construction on existing bridge (pipelines will be constructed 2.0 meter far from existing railway bridge wall on sandy soil and depth of 6 meter below existing ground level). What are the key things...
  2. sworddark90

    Questions regarding using average values of SPT-N values

    Hello , i have been given a task to record spt values in a 5 layers , each layer is 1 meter thick. My question is , in reference to the attached boring log , is it good practice to take the average values of N between layers or to take the minimum value (For example 1-2.0m depth , do i take the...
  3. sworddark90

    Unit weight of soil in the absence of water table

    Hello , i need guidance to which unit weight of soil to be used. I have been given a soil report and was asked to conduct a review on the bearing capacity calculations and settlements. All boreholes were up to 12 meters in depth , and none encountered water table. The soil type is sand . In the...
  4. sworddark90

    Schmertmann's Method using Cone penetration resistance correlation to SPT

    Greetings , I have been using this equation from Smith's Elements of Soil Mechanics book , and when comparing it with other equations that uses for instance the Modulus of Elasticity (Es) instead of "xCr" , there is a noticeable difference in settlement values , can anyone clarify , to how...
  5. sworddark90

    Schmertmann Method using CPT vs Using Modulus of Elasticity

    Greetings all , I am having a confusion in regards to which equation is more accurate for settlement calculations for granular soils. - Smith's Elements of Soil Mechanics , - Principles of Foundation Engineering Braja M.Das . I have conducted a comparison using both methods , here are my...

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